Webster County, Iowa · Frost dates

Webster County frost dates.

First-frost, last-frost, and growing-season length for Webster County, Iowa. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 5a

32°F — light freeze

Last spring frost

10%
05-09
20%
05-05
50%
04-28
80%
04-18
90%
04-13

First fall frost

10%
09-24
20%
09-29
50%
10-08
80%
10-18
90%
10-22

28°F — killing freeze

Last spring freeze

10%
05-01
20%
04-27
50%
04-17
80%
04-08
90%
04-04

First fall freeze

10%
10-03
20%
10-09
50%
10-19
80%
10-28
90%
11-01

Growing season length (days, 28°F threshold)

Short year
155
Median
185
Long year
211

Source NOAA station

FT DODGE 5NNW, IA US

10.4 mi · 30 yrs of record (19912020) · 1115 ft elev.

Data from FT DODGE 5NNW, IA US, 10.4 miles away with 30-year NOAA record (1991-2020).

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